Are you ready for the return of straight leg jeans?

Reverse the movement back to the start. Repeat 6 to 8 times per side. Build hip flexor strength. Sit on the floor, chest up, legs straight, a kettle-bell or another object just outside your right ...

Keep your knees close together and your back straight. Hold for 20 to 30 seconds, then switch legs. Perform three sets on ...

Yes, technically the L-sit is just about sitting pretty in mid-air with your legs straight out in front of you. But it’s a test of full-body strength, abdominal endurance and mental grit.

Tip: Lower your legs until you feel your core muscles activate. Muscle targeted: Lower abs 3. Russian twist Sit up straight with your knees bent and feet in front of you. Lift your feet about a ...